Headlamp for motor vehicles



R. P. TEELE JR E-[EADLAMP FOR MOTOR VEHICLES Aug. 15, 1950 Filed March 31, 1944 INVENTOR RAY l TEEL E JR. BY I ATTORNEY.

Patented Aug. 15, 1950 UNITED STATES PATENT OFFICE HEADLAMP FOR MOTOR VEHICLES Ray P. Teele, Jr., Berkeley, Calif., assignor to the United States of America as represented by the Secretary of Commerce The invention described herein may be manufactured and used by Or for the Government of the United States for governmental purposes without the payment to me of any royalty thereon in accordance with the provision of the Act of April 30, 1928 (Ch. 460, 45 Stat. L, 167).

My invention relates to a headlamp for motor vehicles for driving under blackout conditions,

In the accompanying drawings:

Figure 1 is a side elevation of my complete headlamp;

Figure 2 is a front elevation;

Figure 3 is a section on the line 3-3 of Figure 2;

Figure 4 is a section on the line 44, of Figure 3;

Figure 5 is a detail of the light emitting aperture as seen from 5-5 of Figure 3.

In the drawings a housing H is provided with a face plate 12 on which there is rigidly mounted a hood l3 having a substantially horizontal margin l4 and has rigidly mounted therein a louver i5, approximately parallel with the face plate H, with a lower edge l6 of substantially trapezoidal shape. Within the housing If is a bracket I! carried by the face plate 12. This bracket supports a lamp socket l8 and a mirror 19. Mounted in the socket I8 is a lamp 20 having a filament 2!. The face plate [2 is provided with a trapezoidal-shaped aperture 22 wholly above the margin it of the hood l3 and is closed by means of a light transmitting plate 23 secured to the face plate l2 by any suitable means. The light from the filament 2| and that reflected by the mirror l9 passes through the aperture 22 in the face plate l2 and falls on the opaque louver [5 which obstructs all but those downwardly directed rays which are permitted to pass the controlling lower edge It of the louver I5 and the margin M of the hood 'l3. The lateral spread of the light is controlled by the sides of the approximately trapezoidal aperture 22 and the louver I5.

My headlamp produces a beam of predictable and controlled intensity, direction and distribution to comply with the blackout standards and/ or regulations of the War Department. Vehicles equipped with my headlamp may be operated at night with a minimum of danger of their presence and movement being detected by observers in airplanes.

amended April 30, 192 8; 370 O. G. 757) and that the invention includes all modifications and equivalents which fall within the scope of the appended claims.

What I claim is:

1. An attachment for headlights for motor vehicles for restricting highway illumination comprising an opaque cover plate provided with an approximately trapezoidal aperture in the upper portion thereof; means for detachably mounting said cover plate on a headlight, an opaque hood of substantially egg shaped curvature rigidly secured to said plate and shielding said aperture, and an opaque louver within said hood having a reentrant lower margin. restricting emerging rays to those which pass below a horizontal plane and do not diverge materially before reaching a highway surface.

2. An attachment for headlights for motor vehicles for restricting illumination, comprising an opaque cover plate provided with an upwardly tapered trapezoidal aperture in the upper portion thereof, means for rigidly and detachably mounting said cover plate on a headlight, an opaque hood of substantially egg shaped curvature rigidly secured to said plate and shielding said aperture, and an opaque louver within said hood parallel with said cover plate having a lower margin cut out to leave an upwardly tapered trapezoidal notch, whereby only rays reflected downwardly by said hood may emerge from said headlight.

RAY P. TEELE, JR.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 1,549,987 Juergens Aug. 18, 1925 1,883,360 Fortney Oct. 18, 1932 2,229,693 Dietrich Jan. 28, 1941 2,354,804 Falge et a1. Aug. 1, 1944 FOREIGN PATENTS Number Country Date 863,216 France Jan. 2, 1941 701,281 Germany of 1941 539,499 England of 1941 845,425 France of 1939 

